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Table 2 Regression models for substance use in relation with family living arrangement and parental socioeconomic group (ESCAPAD survey 2017, metropolitan France; PR: Prevalence ratios)

From: Use of tobacco, alcohol and cannabis in late adolescence: roles of family living arrangement and socioeconomic group

  Daily tobacco smoking Binge drinking Regular cannabis use
Age and sex-adjusted
PR (95% CI)
Full model
PR (95% CI)
Age and sex-adjusted
PR (95% CI)
Full model
PR (95% CI)
Age and sex-adjusted
PR (95% CI)
Full model
PR (95% CI)
Females vs Males 1.11 (1.07–1.15) 1.11 (1.07–1.15) 1.97 (1.88–2.07) 1.98 (1.88–2.08) 2.14 (1.98–2.32) 2.15 (1.98–2.32)
18 years vs 17 years 1.30 (1.23–1.37) 1.30 (1.23–1.36) 1.19 (1.11–1.28) 1.21 (1.12–1.30) 1.56 (1.41–1.74) 1.58 (1.43–1.75)
Family living arrangement
 Intact family 1.0 1.0 1.0 1.0 1.0 1.0
 Parent-stepparent 1.78 (1.69–1.87) 1.76 (1.67–1.85) 1.27 (1.18–1.37) 1.29 (1.20–1.40) 2.03 (1.81–2.28) 2.05 (1.83–2.31)
 Father single parent 1.69 (1.55–1.84) 1.67 (1.54–1.82) 1.29 (1.14–1.45) 1.32 (1.17–1.48) 2.31 (1.95–2.74) 2.35 (1.98–2.78)
 Mother single parent 1.54 (1.40–1.61) 1.52 (1.45–1.59) 1.11 (1.04–1.19) 1.15 (1.07–1.23) 2.13 (1.93–2.35) 2.18 (1.97–2.41)
 Shared custody 1.50 (1.41–1.62) 1.51 (1.41–1.62) 1.35 (1.24–1.48) 1.34 (1.22–1.46) 1.81 (1.56–2.10) 1.79 (1.55–2.08)
 Other or unknown 1.83 (1.73–1.93) 1.81 (1.71–1.91) 1.55 (1.45–1.67) 1.59 (1.48–1.71) 2.41 (2.16–2.69) 2.45 (2.19–2.74)
Parental socioeconomic group
 Very privileged 1.0 1.0 1.0 1.0 1.0 1.0
 Privileged 1.15 (1.05–1.26) 1.10 (1.01–1.20) 0.97 (0.88–1.07) 0.95 (0.86–1.05) 1.18 (0.99–1.40) 1.11 (0.93–1.32)
 Intermediate 1.23 (1.13–1.34) 1.16 (1.07–1.26) 0.95 (0.86–1.04) 0.92 (0.84–1.01) 1.17 (0.99–1.38) 1.07 (0.91–1.26)
 Modest 1.31 (1.20–1.42) 1.20 (1.11–1.31) 0.86 (0.78–0.94) 0.83 (0.76–0.91) 1.09 (0.93–1.29) 0.96 (0.82–1.13)
 Disadvantaged (unknown or no answer) 1.34 (1.22–1.47) 1.19 (1.09–1.31) 0.72 (0.64–0.81) 0.68 (0.60–0.76) 1.00 (0.83–1.22) 0.83 (0.68–1.00)
  1. In bold: prevalence ratio estimate statistically different from unity